Plural-slide transfer pressing apparatus

ABSTRACT

Plural-slide transfer pressing apparatus wherein a plurality of single action presses are connected right and left at their bed portions, a transmitting shaft provided on a crown of one of the presses and a transmitting shaft provided on a crown of the other press are connected with flexible couplings, both of the presses are driven or stopped by a clutch and a brake provided in one press, and moreover a transfer bar provided across both of the presses is driven by the rotating force taken from either one of main gears provided in a crown of one of the presses.

[4 1 Dec. 18,1973

1 1 PLURAL-SLIDE TRANSFER PRESSING APPARATUS [75] Inventor:

[73] Assignee: Kabushiki Kaisha Komatsu Seisakusho, Tokyo-to, Japan 22Filed: Dec. 29, 1971 21 Appl. No.: 213,409

Eiji Ohno, Komatsu, Japan [30] Foreign Application Priority DataHeiberger 100/207 X FOREIGN PATENTS OR APPLICATIONS 967,056 8/1964 GreatBritain 100/207 1,169,524 11/1969 Great Britain 100/207 PrimaryExaminerWayne A. Morse, Jr. Assistant Examiner-Arthur 0. HendersonAtt0rneyDavid Toren et a1.

[57] ABSTRACT Plural-slide transfer pressing apparatus wherein aplurality of single action presses are connected right and left at theirbed portions, a transmitting shaft provided on a crown of one of thepresses and a transmitting shaft provided on a crown of the other pressare connected with flexible couplings, both of the presses are driven orstopped by a clutch and a brake provided in one press, and moreover atransfer bar provided across both of the presses is driven by therotating force taken from either one of main gears provided in a crownof one of the presses.

2 Claims, 4 Drawing Figures PATENIH] DEE] 81373 SHEET 2 BF 3 FIG. 3

FIG. 2

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I? arm PLURAL-SLIDE TRANSFER PRESSING APPARATUS BACKGROUND OF THEINVENTION In the multi-slide transfer presses of the prior art, they areconstituted by three columns which results in their large size, and theyare not constituted so as to be taken apart easily. Accordingly, theirtransport is much restricted, that is, there is much difficulty withthem in that they are too long on right and left to put in a freight carand they are so heavy that they cannot be taken apart conveniently forthe purpose of constructing at the destination.

The present invention furnishes a pressing apparatus which ischaracterized in that each single action press is alined right and left,the bed portions of each single action press is firmly connected, thetransmitting shaft driving system is substantially the same, thetransmitting shaft driving system can be separated to each single actionpress driving system, and a transfer bar provided across both ofsingle-action presses is driven by the rotating force taken from themain gear of one single action press.

SUMMARY OF THE INVENTION The present invention relates to a transferpressing apparatus comprising plural slides.

The object of the present invention is to provide a transfer pressingapparatus comprising plural slides which is made separable to eachsingle action press very easily, thereby their transport is veryconvenient.

Another object of the present invention is to provide a plural-slidetransfer pressing apparatus which is able to drive and stop each singleaction press by one set of a clutch and a brake, a driving system of onesingle action press being the same as that of the other.

Still another object of the present invention is to provide aplural-slide transfer pressing apparatus wherein a transfer barextending over both single action presses is driven by the rotatingforce taken from a main gear furnished in one single action press of theplural single action presses.

Further object of the present invention is to provide a plural-slidetransfer pressing apparatus in which one single action press having acomparatively large capacity and another having a comparatively smallcapacity are connected together right and left at each of their bedportions, a transmitting shaft of one single action press is extendedabove the other press, control of both the presses is made by a set of aclutch and a brake, and at the same time a transfer bar providedextending over both of the presses is made to drive freely by therotating force from one of the main gears.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing apressing apparatus, according to the present invention, partly removedand shown in longitudinal cross section,

FIG. 2 is a sectional view shown along a line II-II in FIG. 1,

FIG. 3 is a sectional view along a line III-III in FIG. 1, and

FIG. 4 is a detailed view of parts where the bed of the press A and thatof the press B are firmly connected.

DETAILED DESCRIPTION OF THE INVENTION The present invention will now bedescribed referring to an embodimental example. A transmitting shaft 4is supported by bearings 2 and 3 provided on a crown 1 of the largecapacity press A. A clutch 5 is provided at the end of said transmittingshaft 4, and there is provided a brake 6 on the transmitting shaft 4between the bearings 2 and 3. A pinion 7 is mounted on the transmittingshaft 4 between the bearing 2 and the brake 6. On the crown l, a drivingshaft 12 is supported by bearings 8, 9, 10, and 11. On the driving shaft12, a pinion 13 is fixed between bearings 8 and 9, a gear 14 is fixed Ibetween bearings 9 and 10, a pinion 15 is fixed between bearings 10 and11. The pinion 7 is engaged with the gear 14, when the motor 16 mountedon the crown 1 is actuated and the clutch 5 is set, the brake 6 is cut,the transmitting shaft 4 is rotated, thereby, the driving shaft 12 isrotated through the pinion 7 and gear 14. A main gear 20 is fixed on amain shaft 19 supported by mounting portions 17 and 18 provided insidethe crown 1.

The main gear 20 consists of gear portion 21 and the eccentric circularplate portion 22 formed at one side of the gear portion 21. The centreof the gear portion 21 is alined with the centre of the main shaft 19,but the centre of the eccentric circular plate portion 22 is madeeccentric by a predetermined distance from the centre of the main shaft19.

A linklever 23 is connected with the main gear 20 by means of a circularfitting portion 24 formed on the upper portion of the link-lever 23 andwhich fits on the outer periphery of the eccentric circular plateportion 22. The inner peripheral surface of the circular fitting portion24 is made so as to slide in the peripheral direction against the outerperipheral surface of the eccentric circular plate portion 22.

An inserting hole 25 is provided in the lower portion of the link-lever23. On the lower portion of the crown 1, there is a cylindrical guidingmember 26. A connecting rod 27, which is made so as to slide upward anddownward against the inner surface of the cylindrical guiding member 26,is connected with the link-lever 23 by means of the upper portion of theconnecting rod 27 connected to the lower portion of the link-lever 23 bya pin 28. The lower end of the connecting rod 27 is fixed to the upperportion of the slide 29.

In the same manner as mentioned before, a main shaft 32 is fixed at eachend by a mounting portions 30 and 31. A main gear 33 is mountedrotatably on the main shaft 32, a circular fitting portion 36 of alinklever 35 is fitted so as to slide with an eccentric circular plateportion 34 of the main gear 33, the link-lever 35 is connected with theconnecting rod 38 by a pin 37, the lower end of the connecting rod 38 isfixed on the upper portion of the slide 29, and the upper portion of theconnecting rod 38 is able to slide upwardly and downwardly against theinner surface of a cylindrical guide member 39, which is provided at thelower portion of the crown l.

A die mounting member 40 is mounted on the lower portion of the slide29, and a knock out mechanism 41 is provided on the inside of the slide29. Numeral 42 is a balancer. In the press A, the crown 1, uprights 43,43, and bed 44 are connected by tightly four tie rods 45, 45, and nuts46, 47 fitted with the upper end and lower end of each tie rod 45, 45.

Next, in the small capacity press B, a driving shaft 54 is supported bybearing portions 49, 50, 51, 52 and 53 provided on a crown 48. A pinion55, gear 56 and pin- 7 ion 57 are fixed on the driving shaft 54respectively. A

transmitting shaft 60 is supported by hearing portions 58 and 59provided on the crown 48. A pinion 61 fixed the transmitting shaft 60 isengaged with the gear 56.

An end portion of the transmitting shaft 60, projecting from the bearingportion 59, is connecting with a left end portion of an inter-connectingshaft 62 by means of a flexible coupling 63, and an end portion of thetransmitting shaft 64 projecting from the bearing portion 2 on the crown1 of the press A is connecting with a right end portion of theinter-connecting shaft 62 by a flexible coupling 64. Accordingly, whenthe transmitting shaft 4 is rotated by setting of the clutch anddisengaging of the brake 6, the rotating force is transmitted to thetransmitting shaft of the press B side through the flexible coupling 64,inter-connecting shaft 62 and flexible coupling 63. Thus, thetransmitting shaft 4 of the press A is substantially the same shaft asthe transmitting shaft 60 of the press B, thereby the presses A and Bare controlled by the clutch 5 and the brake 6.

Inside of the crown 48 of the press B, there is a main shaft 67supported by hearing portions 65 and 66. A main gear 68 fitted on themain shaft 67 is engaged with the pinion 55. An eccentric circular plateportion 69 of the main gear 68 is fitted with the circular fittingportion 71 of a link-lever 70. In this case, the outer peripheralsurface of the eccentric circular plate portion 69 is made so as toslide in the peripheral direction against the inner peripheral surfaceof the circular fitting portion 71.

The link-lever 70 is connected with a connecting rod 73 by a pin 72, theconnecting rod '73 is able to slide upwardly and downwardly within acylindrical guiding member 74 provided at the lower portion of the crown48, and the lower end of the connecting rod 73 is fixed to the upperportion of a slide 75.

In the same manner, on a main shaft '77 supported by bearing portions76, 76 is fitted with a main gear 78, and main gear 78 engages thepinion 57 mounting on the driving shaft 54. An eccentric circular plateportion 79 of the main gear 78 is fitted so as to slide in theperipheral direction relative to a circular fitting portion 81 of alink-lever 80. The upper portion of a connecting rod 82 is connectedwith the lower portion of the linklever by a pin 83. The lower end ofthe connecting rod 82 is fixed to the upper portion of the slide 74.

In the press B, the crown 48, uprights 84, 84 and bed 85 are connectedtightly together in the upward and downward direction by four tie rods86, 86, and nuts 87 and 88 fitted on the upper end and the lower end ofeach tie rod 86, 86. In a left-side frame portion 89 of the bed 44 ofthe press A, note FIG. 4, an outer plate portion 90 and inner plateportion 91 each have four inserting holes 92, 92, 93, 93, respectively,spaced substantially equal distances apart in the upward and downwarddirections in front of and behind the press A. Also, in a right-sideframe portion 94 of the bed 85 of the press B, an outer plate portion 95and inner plate portion 96 each have four inserting holes 97, 97, 98,98, respectively, spaced substantially equal distances apart in theupward and downward directions in the front of and behind the press B.Inserting holes 92, 92, 93, 93, of the left-side frame portion 89 of thebed 44 of the press A are positioned in alignment with inserting holes97, 97, 98, 98, of the right side frame portion 94 of the bed 85 of thepress B. An abutting plate 99 is fixed at the inside of the outer plateportion 90 of the bed 44 of the press A. An abuting plate 100 is fixedat the inside of the outer plate portion 95 of the bed 85 of the pressB. In this case, the height of the left side frame portion 89 is equalto the height of the right side frame portion 94, so that the uppersurface of the bed 85 of the press B is alined in the horizontaldirection with the upper surface of the bed 44 of the press A.

Reinforcing plates 101, 101, 101 are provided between and are fixed attheir ends to the outer plate portion 90 and the inner plate portion 91.Reinforcing plates 102, 102, 102 are provided inside of the right sideframe portion 94. The reinforcing plates 101, 101, 101 are positioned inthe same horizontal planes as the corresponding reinforcing plates 102,102, 102.

i A left side frame portion 103 of the crown 1, left side upright 43 andleft side frame portion 89 of the bed 44 in the press A are in closecontact with a right side frame portion 104 of the crown 48, right sideupright 84 and right side frame portion 94 of the bed 85 in the press Bso that the press A and presss B are arranged in the interval facing thefront. Especially, the bed 44 of the press A is connected strongly withthe bed 85 of the press B. Namely, each connecting bolt 105, 105, 105 isinserted through the inserting holes 92, 93, 97 and 98 respectively, andnuts 106 and 107 are fitted on the end screw portions of each connectingbolt 105, 105, 105 projecting from the inner plate portion 91 and theinner plate portion 96, thereby the bed 44 is connected with the bed 85.

Each abutting plate 99, 100 has a key way 108, 108 extending in thefront and back directions respectively, and a key 109 is fitted into thekey way 108, 108, so that the sliding movement in the upward anddownward directions between the bed 44 and the bed 85 is prevented.Also, each of the central portions of the left side frame portion 89 andthe right side frame portion 94 have a key way 110, respectively.

By fitting a key 111 into the key way 110, the sliding movement in thefront and back directions between the bed 44 and bed 85 is prevented.Numeral 112 is a bolster of the press A, 113 is a knock out mechanism,and 114 is a bolster of the press B.

A transfer bar actuating mechanism 115, is mounted on the left sideupright 84 of the press B. The transfer bar actuating mechanism 115, isshown in FIGS. 1 and 3, and includes a gear 116 engaged with the maingear 68, a gear 117 fixed on one end of a mounting shaft 1 18 is engagedwith the gear 116. A bevel gear 119 is positioned on the other end ofthe mounting shaft 118 and is in engagement with another bevel gear 120.The bevel gear 120 is fixed to the upper end of a vertically arrangedrotating shaft 121 positioned alongside the left side upright 84. At thelower end of the rotating shaft 121 there is a bevel gear 122 which isin engagement with a bevel gear 123 mounted on a shaft 124. A cam 125 isfixed on the shaft 124. Transfer bars 127 are actuated through a crankmechanism 126 by the rotation of the cam 125 through followers incontact with its cam shaped periphery. The transfer bars 127, 127 extendfrom the press A to the press B, and have fingers 128, 128 for the beingtransferred article.

The present apparatus is actuated as following. When the motor 16 isactuated, the clutch 5 sets and brake 6 disengaged and, the transmittingshaft 4 is rotated. Simultaneously, the transmitting shaft 60 is rotatedthrough the coupling 64, inter-connecting shaft 62 and coupling 63. Inthe press A, the rotating force of the transmitting shaft 4 istransmitted to the driving shaft 12 through the pinion 7 and the gear14, the driving shaft 12 rotates each of main gear and 33 throughpinions 13, 15, respectively, and each link-lever 23, is moved in theupward and downward directions by the corresponding eccentric circularplate portion 22, 24 of the main gear 20, 33, each connecting rod 27, 38is moved in the up and down directions, the slide 29 is moved in theupward and downward directions by the connecting rod 27, 38.

In the press B, the rotating force of the transmitting shaft 60 istransmitted to the driving shaft 54 through the pinion 61 and the gear56. The main gear 68, 78 is rotated through the pinion 55, 57,respectively, and the link-lever 70, 80 moves in the upward and downwarddirections, and, as a result, the connecting rod 73, 82 is moved in theup and down directions, and the slide 75 is moved in the upward anddownward directions by the connecting rods 73, 82.

Simultaneously, the rotating force of the main gear 68 of the press B istransmitted to the rotating shaft 121 through gears 116, 117 and bevelgears 119, 120. The cam 125 is rotated by bevel gears 122, 123, and thetransfer bars 127, 127 are actuated through the crank mechanism 126.

Both of the presses A, B can share the loads accoding to their capacityranges, that is, heavy load processes such as coining are alloted to thepress A which has a large capacity, and light load processes such aspiercing or trimming are alloted to the press B which has a smallcapacity. As a result, both of the presses can be operated at theirhighest efficiencies. Furthermore, both of the presses can be drivensimultaneously by operation of the clutch 5 and the brake 6.Particularly, both of the presses are fixed to one another at theirbeds, thus preventing lateral shifting, and at the same time, thetransmitting shaft of the press A is connected with the transmittingshaft of the press B through flexible couplings and inter-connectingshaft, so that relative motion between the upper portions of the pressesis allowed so that damage can be prevented, and pressing operations canbe carried out at high efficiency by means of the transfer bar on bothof the press A and B by the rotating force introduced from the maingear.

When the plural-slide transfer pressing apparatus according to thepresent invention is to be transported, both of the presses can bedisassembled into singleaction presses by taking off the couplings andconnecting bolts which connect the beds of each press A, B,

and these can be further separated into small parts, so that they can betransported quite safely. In operation, there is the advantage that eachof the presses can operate the works which are the most appropriate fortheir specific capacities.

What is claimed is:

l. A plural-slide transfer pressing apparatus comprising at least twosingle action presses, each said press comprises a frame including acrown, uprights, and a bed, a slide arranged to move up and down in eachsaid frame, said frames are arranged in side-by-side relationship andsaid bed portions thereof are firmly connected together, a transmittingshaft provided on said crown of each said press, means includingflexible couplings arranged for interconnecting said transmittingshafts, a main gear provided in said crown of each said press, a drivesystem in each said press in engagement with said transmitting gear andsaid main gear therein for driving said main gear from said transmittinggear, a clutch and a brake arranged to control said transmitting gear,transfer bars extending across both of said presses, a cam, means forrotating said cam from said main gear of one of said presses, and acrank mechanism interconnecting said cam and said transfer bars fordriving said transfer bars.

2. A plural-slide transfer pressing apparatus comprising at least twosingle action presses, each said press comprises a frame including acrown, uprights, and a bed, a slide arranged to move up and down in eachsaid frame, said frames are arranged in side-by-side relationship andsaid bed portions thereof are firmly connected together, a transmittingshaft provided on said crown of each said press, means includingflexible couplings arranged for interconnecting said transmittingshafts, a main gear provided in said crown of each said press, a drivesystem in each said press in engagement with said transmitting gear andsaid main gear therein for driving said main gear from said transmittinggear, a clutch and a brake arranged to control said transmitting gear,transfer bars extending across both of said presses, a cam, means forrotating said cam from said main gear of one of said presses, a crankmechanism interconnecting said cam and said transfer bars for drivingsaid transfer bars, each said bed of said frames having a side frameportion, each said side frame portion including an upwardly extendinginner plate portion and an upwardly extending outer plate portiondisposed in spaced relation and a plurality of connecting boltsextending through said inner and outer plate portions of said sideframes for fixing said presses together. l= a:

1. A plural-slide transfer pressing apparatus comprising at least twosingle action presses, each said press comprises a frame including acrown, uprights, and a bed, a slide arranged to move up and down in eachsaid frame, said frames are arranged in side-by-side relationship andsaid bed portions thereof are firmly connected together, a transmittingshaft provided on said crown of each said press, means includingflexible couplings arranged for interconnecting said transmittingshafts, a main gear provided in said crown of each said press, a drivesystem in each said press in engagement with said transmitting gear andsaid main gear therein for driving said main gear from said transmittinggear, a clutch and a brake arranged to control said transmitting gear,transfer bars extending across both of said presses, a cam, means forrotating said cam from said main gear of one of said presses, and acrank mechanism interconnecting said cam and said transfer bars fordriving said transfer bars.
 2. A plural-slide transfer pressingapparatus comprising at least two single action presses, each said presscomprises a frame including a crown, uprights, and a bed, a slidearranged to move up and down in each said frame, said frames arearranged in side-by-side relationship and said bed portions thereof arefirmly connected together, a transmitting shaft provided on said crownof each said press, means including flexible couplings arranged forinterconnecting said transmitting shafts, a main gear provided in saidcrown of each said press, a drive system in each said press inengagement with said transmitting gear and said main gear therein fordriving said main gear from said transmitting gear, a clutch and a brakearranged to control said transmitting gear, transfer bars extendingacross both of said presses, a cam, means for rotating said cam fromsaid main gear of one of said presses, a crank mechanism interconnectingsaid cam and said transfer baRs for driving said transfer bars, eachsaid bed of said frames having a side frame portion, each said sideframe portion including an upwardly extending inner plate portion and anupwardly extending outer plate portion disposed in spaced relation and aplurality of connecting bolts extending through said inner and outerplate portions of said side frames for fixing said presses together.